Patents by Inventor Matsunaga Tsuruta

Matsunaga Tsuruta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6089297
    Abstract: An apparatus for and a method of bonding veneers without problems in manufacturing process even if logs, which causes disorder of veneers after dried are used. The veneer bonding apparatus for bonding veneers to each other comprises: a bonding face machining device for machining both end portions of a veneer to be bonded to bonding faces; a bonding agent applying device for applying bonding agent to at least one bonding face of the machined bonding faces; an adjusting device for adjusting a front end bonding face of a succeeding veneer to a rear end bonding face of a preceding veneer such that a face side of the preceding veneer with the applied bonding agent and a backside of the succeeding veneer with the applied bonding agent are flush with each other; and a pressurizing device for pressurizing the adjusted bonding faces to each other.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: July 18, 2000
    Assignee: Meinan Machinery Works, Inc.
    Inventors: Norio Shibagaki, Teruo Fujie, Kenichi Hiraiwa, Masanori Nagai, Kiichi Yamamoto, Matsunaga Tsuruta, Mikio Tsutsui, Katsuhito Okada, Takayuki Yamauchi
  • Patent number: 5255726
    Abstract: A substantially uncurved and unwaved plywood includes at least one pair of veneers located symmetrically with respect to a middle of a thickness of the plywood and having unstraight grains which coincide with each other.A method for producing a substantially uncurved and unwaved plywood comprises locating at least one pair of veneers with identical unstraight grains in a pair of positions symmetrical with respect to a middle of a thickness of a plywood to be produced, in such a manner than the grains of the veneers coincide with each other.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: October 26, 1993
    Assignee: Meinan Machinery Works, Inc.
    Inventors: Katsuji Hasegawa, Yoshinori Koba, Norio Shibagaki, Akira Itoh, Matsunaga Tsuruta